and he's leaving behind a vatican really at a cross roads. the catholic church facing difficult challenges and also opportunities as it moves forward. now, as i say, usually when there's a transition and we've covered it so many times, well, not so many times, but the last one i was here, and that was because a pope died. john paul ii died after living his last years infirmed and in visible pain. now we have a transition, we have a living pope. you're not watching a funeral before the next pope is elected. you're not watching the world's heads of state come here to pay their respects to the departed pope. you're seeing a much different kind of transition. john al whlen, what is pope benedict going to do the rest of the day? >> normally the wednesday audience, the pope gives religious instruction rooted in scripture. but today i would imagine that knowing the momentous nature of what's happening, it's probably going to be uncharacteristically personal for benedict. i will imagine he will talk about what was in his mind and in his heart as he r